经 * * 切除膀胱肿瘤术后的病人，一般都采用膀胱内药物灌注以

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问题单项选择题

经 * * 切除膀胱肿瘤术后的病人，一般都采用膀胱内药物灌注以防止肿瘤的复发，根据文献报道，下列哪种药物的效果最好

A．卡介苗

B．阿霉素

C．顺铂

D．丝裂霉素

E．塞替派

答案

参考答案：A

改错题

短文改错

Growing up is not easy.Sometimes all that is need is someone to rely on.

For many years, she was Mum.My mother was a career woman and has her own problems to take

care, but when I needed her, she was always there.Her strength came from anywhere.I don't quite

know, somewhere very deep.She was so strong that she would never break down, even while I went

to her with all my littleboy problems and shout at her.

Her strength made me stronger and gave to me courage to try things other thought were impossible.

A helping hand is always stronger enough to lift you up.

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单项选择题

转辙机的摩擦连接器有两个作用，转辙机正常转换完毕，以摩擦空转消耗掉电动机的旋转惯性转矩，防护（）电机不受损。

A.移位接触器

B.炭刷

C.电机

D.接点